Jeff Milrod, BittWare
Digital channelizer implemented on COTS FPGA board: A flexible solution for military signal processing
One of the major challenges of modern military Digital Signal Processing (DSP) is dealing with the ever-widening bandwidth of digitized signals. Until fairly recently, analog-to-digital converters (A/D converters) were limited to only hundreds of MHz, so anything beyond that had to be dealt with using traditional RF/analog methodologies. Now that A/D converters are available in the GHz range, much wider band processing is moving to the digital domain.
External coprocessors have the potential to feed standard C language design flows to FPGAs, resulting in high-performance, productive, and flexible systems that could render DSPs obsolete.